abstract:"No taxation without representation" is a slogan originating during the 1750s and 1760s that summarized a primary grievance of the British colonists in the Thirteen Colonies, which was one of the major causes of the American Revolution. In short, many in those colonies believed that, as they were not directly represented in the distant British Parliament, any laws it passed taxing the colonists (such as the Sugar Act and the Stamp Act) were illegal under the Bill of Rights 1689, and were a denial of their rights as Englishmen.
The famous saying "no taxation without representation" expressed the anger of the colonists.
VOA: special.2010.03.06
And for Mr Issing the implied transfer of money would violate the fundamental democratic principle that there should be "no taxationwithoutrepresentation".